Geography
The Himalayan Rivers
हिमालयी नदियाँ
In Class 9 Geography, this topic from the chapter “Drainage” introduces the Himalayan river systems, especially the Indus, Ganga and Brahmaputra. Students learn how these rivers are fed by glaciers, snow and rainfall, making them largely perennial, and trace their courses, major tributaries and drainage patterns. The topic also explains how Himalayan rivers shape deep gorges, valleys, meanders, floodplains and deltas, while supporting farming, settlements and ecosystems. It highlights their economic importance as well as the challenges of floods, erosion and changing water conditions.
Practice questions
Which tributary of the Ganga system originates from the Yamunotri Glacier?MediumLevel 33Why is deposition greater in the lower course of Himalayan rivers?MediumLevel 33The Sundarban in the delta region is associated with which rivers?MediumLevel 33The major Indian flow of the Brahmaputra is associated with the plains of which state?MediumLevel 33What is the role of glaciers in the catchment of Himalayan rivers?MediumLevel 33Why can Himalayan rivers abandon old channels and create new courses in plains?MediumLevel 33How does the energy of Himalayan rivers generally change from mountains to plains?MediumLevel 33In the Ganga system, the source region of rivers like Kosi and Gandak lies mainly toward which side?MediumLevel 33Why are Himalayan rivers linked with the formation of India's northern plain system?MediumLevel 33What is the result of a dense network of tributaries in Himalayan rivers?MediumLevel 33Why is it important to study origin, tributaries and mouth together while studying Himalayan river systems?MediumLevel 33The formation of alluvial plains by Himalayan rivers is most closely linked with what?MediumLevel 32If a Himalayan river has a large catchment area, what effect can it have on the main river?MediumLevel 32What does a network of tributaries strengthen in Himalayan rivers?MediumLevel 32What should be understood from the changing names of the Brahmaputra?MediumLevel 32What is the main reason for gorge formation in the upper course of Himalayan rivers?MediumLevel 32What is the importance of Sundarbans in the Ganga Brahmaputra delta?MediumLevel 32What is the main reason for island formation in the Brahmaputra River in the plains of Assam?MediumLevel 33Oxbow lakes in Himalayan river plains are formed by which process?MediumLevel 33What causes natural levees to form along Himalayan rivers in plains?MediumLevel 33